Base | Representation |
---|---|
bin | 111100101000101100… |
… | …0101001011001110101 |
3 | 110110002212102122100102 |
4 | 1321101120221121311 |
5 | 4113134343400141 |
6 | 135453015123445 |
7 | 12256556300411 |
oct | 1712130513165 |
9 | 413085378312 |
10 | 130214434421 |
11 | 50250720965 |
12 | 212a0673585 |
13 | c382443bc6 |
14 | 6433b67d41 |
15 | 35c1abe99b |
hex | 1e51629675 |
130214434421 has 4 divisors (see below), whose sum is σ = 137874107052. Its totient is φ = 122554761792.
The previous prime is 130214434411. The next prime is 130214434429. The reversal of 130214434421 is 124434412031.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 62043835396 + 68170599025 = 249086^2 + 261095^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-130214434421 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130214434429) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3829836290 + ... + 3829836323.
It is an arithmetic number, because the mean of its divisors is an integer number (34468526763).
Almost surely, 2130214434421 is an apocalyptic number.
It is an amenable number.
130214434421 is a deficient number, since it is larger than the sum of its proper divisors (7659672631).
130214434421 is an equidigital number, since it uses as much as digits as its factorization.
130214434421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7659672630.
The product of its (nonzero) digits is 9216, while the sum is 29.
Adding to 130214434421 its reverse (124434412031), we get a palindrome (254648846452).
The spelling of 130214434421 in words is "one hundred thirty billion, two hundred fourteen million, four hundred thirty-four thousand, four hundred twenty-one".
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